Since coming back from a knee injury suffered at Georgia last season, Todd Gurley of the St. Louis Rams has run the ball as no rookie in NFL history has.

Gurley is the first rookie to run for at least 125 yards in four straight starts. His 566 yards in his first four starts broke the Super Bowl era record that had been established at 539 yards by Billy Sims with the Detroit Lions in 1980.

Gurley points out to the reporters who've gathered around him in the locker room after games that he's not getting those yards by himself.

"It was just a great job by the offensive linemen and the receivers, just blocking the whole way," Gurley said of a 71-yard touchdown run in the Rams' 27-6 victory over the San Francisco 49ers last week. "I'm just trying to play my game, keep my shoulders square and see what I see and just hit it. There's no better feeling than going through something untouched for a touchdown."

The Rams' offensive line hasn't been spoken about so kindly in a while as injuries and inexperience have kept it in a state of flux.

Former Auburn standout Greg Robinson is the Rams' left offensive tackle. He'll be making his 17th NFL start at that spot when St. Louis visits the Minnesota Vikings at noon CST Sunday. He's on his fourth partner at left guard.

Garrett Reynolds is the latest after Rodger Saffold went down with a season-ending shoulder injury on Oct. 11.

Robinson wasn't so sure about playing beside Reynolds "because our playing style is a lot different."

"He admits it," Robinson said. "He says, 'Greg, you're a lot more athletic than me.' I can just move a little faster than him."

Reynolds doesn't deny it.

"He's got more athletic ability in his leg than I do in my body," Reynolds said. "But that is completely fine with me. I'm just there. I tell him he's the athletic guy. I just try to get in the way."

But the Rams have won both games that Reynolds has started to lift their record to 4-3, and Robinson said he's benefitted from the experience and communication skill of the six-year veteran.

St. Louis selected Robinson, who was Auburn's left offensive tackle, with the second choice in the 2014 NFL Draft with the intent of making him the Rams' left guard to open his career. He hardly played in the first four games of his rookie season, then started three games at left guard. When left offensive tackle Jake Long suffered a season-ending knee injury in the seventh game, Robinson shifted to the opening and has been there since.

"Greg's been a little inconsistent at times," St. Louis coach Jeff Fisher said of Robinson's play in 2015. "That's the nature of that position. Left tackle's a hard position to play. I think Garrett's been a good influence on him."

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Robinson said he still has a lot to learn about playing the glamor spot of the NFL offensive line.

"I feel like I haven't really reached my full potential, but I'm still building," Robinson said. "Run-blocking's really just all effort, I feel. Pass-blocking's more technique. Just taking the proper steps that the coaches stress."